如何從 Python 中的給定字符串打印偶數和奇數字符

Question

我在 Python 中遇到問題：問題陳述

但是，我的代碼沒有得到我想要的 output。 我想將字符串存儲在一個數組（2xtestcases）中（由'testcases'的大小給出，然后為每個單詞循環遍歷 arrays 的字符串索引並打印偶數和不均勻單詞。

import numpy as np
import array as arr

# testcases
testcases = int(input())
# list of empty strings
strings = [None] * testcases

# list of translated strings
strings_translated = np.zeros((2, testcases))

for i in range(0, testcases):
    strings[i] = input()
    for k in strings[i]:
        if k % 2 == 0:
            strings_translated[1, i] = strings_translated[1, i] + k
        else:
            strings_translated[2, i] = strings_translated[2, i] + k

for i in range(0, testcases):
    print(strings_translated[1, i] + strings_translated[2, i])

我收到以下錯誤：

if k % 2 == 0:
TypeError: not all arguments converted during string formatting

Answer 1

你想試試這個嗎：（只是一個示例代碼給你提示）

N = len(s)   # your string's len

evens = ''.join(s[i] for i in range(0, N,2))  # 'Hce' 

# then do the odds character as well